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Proceedings Paper

A time-of-flight range image sensor using high-speed 4-tap lock-in pixels
Author(s): A. Komazawa; H. Trang; T. Takasawa; S. Aoyama; K. Yasutomi; K. Kagawa; S. Kawahito
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Paper Abstract

This paper presents a CMOS Time-of-Flight (TOF) range imager using pinned-photodiode based high-speed 4-tap lock-in pixels with lateral-electric-field charge modulators (LEFM) in a 0.11 um CIS process. The proposed lock-in pixel structure using lateral electric field control is suitable for implementing a multiple-tap charge modulator while achieving high-speed charge transfer for high time resolution. The TOF imager with the multiple-tap charge modulators is expected to have background light cancelling capability in one frame and to improve range resolution with the 4 time windows for a range-shifted light pulse. Measurement results of the implemented TOF imager with 160×240 pixels are reported.

Paper Details

Date Published: 20 February 2017
PDF: 5 pages
Proc. SPIE 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics, 1032806 (20 February 2017); doi: 10.1117/12.2270543
Show Author Affiliations
A. Komazawa, Shizuoka Univ. (Japan)
H. Trang, Shizuoka Univ. (Japan)
T. Takasawa, Shizuoka Univ. (Japan)
S. Aoyama, Brookman Technology, Inc. (Japan)
K. Yasutomi, Shizuoka Univ. (Japan)
K. Kagawa, Shizuoka Univ. (Japan)
S. Kawahito, Shizuoka Univ. (Japan)

Published in SPIE Proceedings Vol. 10328:
Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics
T. Goji Etoh; Hiroyuki Shiraga, Editor(s)

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